Due to Lendl winning Down Under to start 1990, Pete Sampras became only the sixth man to win a hard court slam at the 1990 U.S. Open. It may just be me, but for Sampras to be only the sixth man to win a slam on hard courts despite 15 grand slam events having been contested on hard courts prior to the 1990 U.S. Open seems odd. Even more astounding to me is Patrick Rafter becoming only the tenth man to win a Grand Slam on a hard court when he won the 1997 U.S. Open title.